Charms are new upgrades for your units. They’re not the same as regular items, because it’s not easy to get them as seems to be, but each one can make a real difference in the fight.
Every charm has one fixed rarity (for example, the Dino Charm is always Legendary, the Spoon Charm is always Common, and so on).
Charms can upgrade your units in three ways:
Main stat - a damage boost to the “base” damage of the unit.
Additional stat (only for Rare, Epic, and Legendary charms) - a boost to some “base” unit stat, such as DMG%, HP%, Crit. Chance, etc. Always the same for this type of Charm.
Passive ability - an extra unique skill that works only if the unit fits the charm's class.
Let's see an example: Dino is a charm catered to Heavyweight units. Let's equip it onto our Juggernaut (also Heavyweight) and see the results:
The base main damage is increased by 50 and also additionally by 5%.
The charm's ability is now active: when you hire the Juggernaut, two of them will come out of the bus, with 20% of their health each.
Numbers too low? Try upgrading and improving the charm. Now it gives +420 and +23% to the base main damage, and the two units' health is now 50% instead of 20%.
Now let's try to equip it onto the Medic. Damage increase still applies, but the charm's ability no longer works.
We added 49 unique charms, each with its own special properties.